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Accounting Monthly Recurring Revenue (Annual) Calculator FAQ

Answers to common questions about calculating MRR, annualizing ARR, classifying revenue movements, and interpreting retention results.

Use these questions and answers to understand the calculator inputs and outputs. The calculator provides a recurring-revenue run-rate estimate and should be used alongside the reporting definitions appropriate for your business.

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MRR and ARR basics

Definitions of the core recurring-revenue measures used by the calculator.

What is monthly recurring revenue?

MRR is recurring subscription revenue measured on a monthly basis from active customer agreements. It commonly excludes one-time charges and non-recurring services.

What is annual recurring revenue?

ARR is an annualized recurring-revenue run rate. In this calculator, it is ending MRR multiplied by 12.

Is ARR a forecast?

No. ARR is a point-in-time annualization of the current MRR run rate and does not predict future sales, renewals, or churn.

Is ARR the same as total annual revenue?

Not necessarily. Total annual revenue can include one-time sales and may follow revenue-recognition timing that differs from an ARR run rate.

Revenue movement inputs

How to classify the five MRR inputs in the monthly bridge.

What belongs in new MRR?

New MRR is recurring revenue from customers acquired during the month.

What belongs in expansion MRR?

Expansion MRR is additional recurring revenue from existing customers, such as upgrades, extra seats, add-ons, or higher committed usage.

What is contraction MRR?

Contraction MRR is revenue lost when an existing customer remains subscribed but pays less after a downgrade or reduced commitment.

What is churned MRR?

Churned MRR is the full recurring revenue lost when a customer cancels or does not renew.

Can one customer create both expansion and contraction in a month?

It can occur in detailed records, but use a consistent reporting method and avoid counting the same revenue movement twice.

Retention and interpretation

How to read net MRR change and net revenue retention.

How is net MRR change calculated?

Net MRR change equals ending MRR minus beginning MRR. It is the overall monthly increase or decrease after every listed movement.

How is net revenue retention calculated?

Net revenue retention equals beginning MRR plus expansion MRR minus contraction MRR minus churned MRR, divided by beginning MRR, multiplied by 100.

Why does net revenue retention exclude new MRR?

The metric is designed to measure the retained and expanded value of the customer base that existed at the beginning of the period.

What does net revenue retention below 100% mean?

It means contraction and churn from the beginning customer base exceeded expansion from that same base during the period.

What if beginning MRR is zero?

Ending MRR and ARR can still be calculated, but net revenue retention cannot be calculated because there is no beginning MRR to use as a denominator.

Accounting and reporting scope

Important boundaries when using recurring-revenue metrics for reporting.

Should one-time implementation fees be included?

No. This calculator is intended for recurring subscription revenue, so one-time fees should generally be excluded.

Should taxes be included in MRR?

Use a consistent internal reporting definition. Many recurring-revenue reports exclude taxes because they are not subscription revenue retained by the business.

Does the calculator handle refunds and credits?

Not directly. Reflect them only if your reporting policy treats them as changes to recurring MRR, and keep the treatment consistent.

Can this calculator be used for financial statements?

It is an estimate of recurring-revenue metrics. Financial statement reporting may require different treatment based on applicable accounting policies and contract details.

Featured Answer

How do you calculate ARR from MRR?

Multiply ending MRR by 12. The calculator first derives ending MRR after new, expansion, contraction, and churn movements.

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